Package making – Methods – Opening only
Patent
1994-12-16
1997-07-22
Coan, James F.
Package making
Methods
Opening only
533812, 53449, 53463, 206455, B65B 2500, B65D 8500
Patent
active
056494114
ABSTRACT:
A stack of photographic sheets is arranged between two rectangular sheets of lighttight wrapping foil. The foil sheets are of a size larger than the stack so that their side margins project laterally exteriorly of the stack in sandwiched relation to form flaps on all sides of the stack. The flaps are initially lighttightly closed, e.g. sealed together, along their peripheral margins. The wrapped stack is lighttightly enclosed within a package having a base and a cover. The base has upstanding side walls arranged in a rectangle large enough to contain the wrapped stack and may include a solid bottom wall. The cover is light-impervious and has margins overlying the top edges of the base side walls in lighttight clamping contact therewith with inner regions of the projecting sheet flaps gripped therebetween to lighttightly close said flaps inwardly of their edges. The initial closure along the flap margins can now be removed to free edges of the flaps. When, after the package is placed within a lighttight compartment and the cover is lifted from the base, the uppermost of the foil wrapping sheets being no longer connected to the other foil wrapping sheet can be readily removed, rendering the stack accessible for removal of its sheets.
REFERENCES:
patent: 3741386 (1973-06-01), Schmidt
patent: 4909389 (1990-03-01), Plessers et al.
patent: 5055869 (1991-10-01), Di Pietro
patent: 5139148 (1992-08-01), Peeters et al.
AGFA-GEVAERT N.V.
Coan James F.
Daniel William J.
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